Dizziness in a heated room may be caused by the lack of oxygen to the brain, increased blood viscosity, reduced blood flow, lower blood pressure and other reasons caused by the special environment of the heated room. But if you are suffering from some of the diseases that can cause dizziness, then enter the heating room dizziness may not have much to do with the heating room. 1, lack of oxygen in the brain: the heating room is usually a closed space, air circulation is not good, the heating will also make the indoor temperature becomes high, humidity is reduced, prone to a variety of pathogenic micro-organisms, prolonged non-ventilation, it will make the indoor air become turbid, oxygen content is reduced. Long-term inhalation of turbid air, the human body is prone to brain ischemia and hypoxia, which may appear dizziness; 2, increased blood viscosity, decreased blood flow, lower blood pressure: dry, high-temperature environment will accelerate the body’s loss of water, which can cause the body’s blood viscosity increases, blood flow is reduced, there may be a reduction in blood pressure, generally also manifested as dizziness symptoms; 3, the disease factors: can lead to dizziness symptoms. Dizziness symptoms of diseases commonly include craniocerebral diseases (such as cerebral infarction, cerebral blood supply insufficiency, etc.), colds, anemia, hypertension, hypotension, cervical spine disease, heart disease. Patients with these diseases who experience dizziness in a heated room may be caused by the original disease.